Submission #679553

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

typedef ostringstream OSS; typedef istringstream ISS;
typedef long long LL;
typedef pair<int, int> PII;  typedef pair<LL, LL> PLL;
typedef vector<int>    VI;   typedef vector<VI>   VVI;   typedef vector<VVI>   VVVI;
typedef vector<LL>     VLL;  typedef vector<VLL>  VVLL;  typedef vector<VVLL>  VVVLL;
typedef vector<double> VD;   typedef vector<VD>   VVD;   typedef vector<VVD>   VVVD;
typedef vector<string> VS;   typedef vector<VS>   VVS;   typedef vector<VVS>   VVVS;
typedef vector<bool>   VB;   typedef vector<VB>   VVB;   typedef vector<VVB>   VVVB;
typedef vector<PII>    VPII; typedef vector<VPII> VVPII; typedef vector<VVPII> VVVPII;
typedef vector<PLL>    VPLL; typedef vector<VPLL> VVPLL; typedef vector<VVPLL> VVVPLL;

#define fst first
#define snd second
// #define Y first
// #define X second
#define MP make_pair
#define PB push_back
#define EB emplace_back 
#define ALL(x)  (x).begin(),(x).end()
#define RALL(x) (x).rbegin(),(x).rend()
#define RANGEBOX(x,y,maxX,maxY) (0 <= (x) && 0 <= (y) && (x) < (maxX) && (y) < (maxY))
#define RANGE(x, l, r) ((l) <= (x) && (x) <= (r))
#define rep(i, N)  for (int i = 0; i < (int)(N); i++)
#define rrep(i, N) for (int i = N - 1; i >= 0; i--)
#define REP(i, init, N)  for (int i = (init); i < (int)(N); i++)
#define RREP(i, N, last) for (int i = (init - 1); i >= last; i--)
#define MAXUD(orig, target) orig = max(orig, target)
#define MINUD(orig, target) orig = min(orig, target)
#define DUMP( x ) cerr << #x << " = " << ( x ) << endl

template < typename T > inline T fromString(const string &s) { T res; ISS iss(s); iss >> res; return res; };
template < typename T > inline string toString(const T &a)   { OSS oss; oss << a; return oss.str(); };

const int    INF  = 0x3f3f3f3f;
const LL     INFL = 0x3f3f3f3f3f3f3f3fLL;
const double DINF = 0x3f3f3f3f;
const int    DX[] = {1,  0, -1, 0};
const int    DY[] = {0, -1,  0, 1};
const double EPS  = 1e-12;
// const double PI   = acos(-1.0);
// lambda: [](T1 x)->T2{return y;}
// simple lambda: [](T x){return x;}

int encode(int x) {
    int h = x / 100;
    int m = x % 100;
    int m2 = h * 60 + m;
    return m2;
}

string decode(int x) {
    int m2 = x * 5;
    int h = m2 / 60;
    int m = m2 % 60;
    string res;
    if (h < 10) res += "0";
    res += toString(h);
    if (m < 10) res += "0";
    res += toString(m);
    return res;
}

int main(void) {
    int N;
    cin >> N;
    VI ss(N), es(N);
    rep(i, N) {
        int s, e;
        scanf("%d-%d", &s, &e);
        ss[i] = encode(s) / 5;
        es[i] = (encode(e) + 4) / 5;
    }

    int M = 2400 / 5 + 2;
    VI ts(M);

    rep(i, N) {
        ts[ss[i]] += 1;
        ts[es[i]] -= 1;
    }

    partial_sum(ALL(ts), ts.begin());

    bool flg = false;
    rep(i, M) {
        if (flg && !ts[i]) {
            cout << "-" << (decode(i)) << endl;
            flg = false;
        } else if (!flg && ts[i]) {
            cout << decode(i);
            flg = true;
        }
    }
    

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:72:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d-%d", &s, &e);
                               ^

Judge Result